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Simple, Efficient, and EMI Compliant Power Over Ethernet EVBs
The latest PoE designs from Skyworks use Würth Elektronik transformers to simplify designing, testing, and procuring magnetic components
With Skyworks Solutions' latest PoE evaluation boards, which leverage Würth Elektronik's standard PoE transformers to simplify sourcing magnetic components, users can easily add 15 W, class 3 Power over Ethernet (PoE) to any design. The three isolated flyback designs offer 3.3 V, 5 V, and 12 V output options, all reaching over 80% peak end-to-end (PoE input to DC output) efficiency. All three use a simple four-layer PCB and are fully EMI compliant with the EMI report included in the user guide. Skyworks' Si3404 PoE PD device manages both the IEEE PoE interface and the DC/DC conversion with internal FETs to reduce board space and costs.
Features
- 3.3 V, 5 V, or 12 V output options
- Up to 15 W, class 3 power
- Isolated output
- Over 80% end-to-end efficiency
- EMI and IEEE PoE compliant
- Off-the-shelf Würth Elektronik transformers
- 3.3 V - 749119933
- 5 V - 749119950
- 12 V - 7491199112
- Small PCB area
- Same user guide for all three designs
Applications
- Anything with an Ethernet port that needs power
- Security cameras
- IP phones
- IoT/Bluetooth® gateways
- Wireless access points
- Payment terminals
- Lighting systems
Eval Boards
| Image | Manufacturer Part Number | Description | Voltage - Output | Current - Output | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|---|---|
 | SI3404FB3V3KIT | EVAL BOARD FOR SI3404 | 3.3V | 3.5A | 2 - Immediate | $616.17 | View Details | |
 |  | SI3404FB5V3KIT | EVAL BOARD FOR SI3404 | 5V | 2.5A | 1 - Immediate | $616.17 | View Details |
|  | SI3404FB12V3KIT | EVAL BOARD FOR SI3404 | 12V | 1A | 1 - Immediate | $616.17 | View Details |
Würth Elektronik Components
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
|  | 749119933 | XFMR POE DC/DC CONV 127UH SMD | 349 - Immediate | $44.54 | View Details |
| | 749119950 | XFMR POE DC/DC CONV 127UH SMD | 660 - Immediate | $49.56 | View Details |
| | 7491199112 | XFMR POE DC/DC CONV 127UH SMD | 386 - Immediate | $44.54 | View Details |
|  | 885012109004 | CAP CER 100UF 6.3V X5R 1210 | 624 - Immediate | $8.15 | View Details |
|  | 885012206108 | CAP CER 1000PF 100V X7R 0603 | 9824 - Immediate | $0.82 | View Details |
|  | 744302015 | FIXED IND 150NH 30A 0.000235OHM | 7083 - Immediate | $16.96 | View Details |
|  | 885012207122 | CAP CER 10000PF 100V X7R 0805 | 3056 - Immediate | $0.99 | View Details |
|  | 742792040 | FERRITE BEAD 600 OHM 0805 1LN | 166834 - Immediate | $1.89 | View Details |
Published: 2021-05-18
Hong Kong, China